Gas-engine attachment.



J. M. MANESS.

.GAS ENGINE ATTACHMENT.

APPLICATION FILED OCT. 21. 1914.

. 19133372, v Patented Mar.30,1915.

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WTED STATES PATENT @FFTCE JOHN MOSES MANESSi, F ELLERBE, NORTH CAROLINA, ASSIGNOR OF ONE-THIRD T0 '3'. EETZER LINTZ AND ONE-THIRD TO B. BENNETT NAPIER, BOTH OF RICHMOND COUNTY NORTH CAROLINA;

easnnemn ATTACHMENT.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application filed October 21, 1914. Serial No. 867,921.

To all whom it may concern Be it known that I, JOHN M. MANEss, citizen of the United States, residing at Ellerbe, in the county of Richmond and State of North Carolina, haveinvented a certain new and useful Gas-Engine Attachment, of which the following is a specification.

This invention relates to internal combustion engines and has special reference to means for automatically controlling the supply of hydro-carbon to such engines. It is a well-known fact that after the needlevalve of the carbureter, common in engines used in automobiles and the like, is adjusted to the position usual in starting the same supply of hydrocarbon is maintained so long as the engine is running. 7

The principal object of the present invention is to provide an improved and efficient means for' automatically decreasing the supply of hydrocarbon after the engine is started and for automatically adjusting the needle-valve when the engine is stopped for restarting.

The second object of the invention is to accomplish this purpose by mechanism thermostatically controlled by the. heat 'of the exhaust through such an engine.

With the above and other'objects in view, the invention consists in general of'- certain novel details of construction and combinations of parts hereinafter fully described,

There has been herein shown one form of the device especially adapted to the pe-' culiar engine illustrated but it will be obvious that different forms may be used with different types of engines without departing fromthe general principle involved.-

The numeral 10 indicates the-body of the engine and at 11 is shown the exhaustpipe, which usually runs along the top of the engine adjacent one side. The engine is furthermore provided with the usual carbureter 12 controlled by the needle-valve, the stem whereof is shown at 13.

Rigidly secured to one of the bolts 14: of the engine is an arm 15 which extends outward over the exhaust pipe. To this arm is rigidly secured one end of an expansion member 16 which is preferably. in the form of a tube of metal readily expansible under the influence of heat, brass pipe being pre ferred. This tube extends along the exhaust pipe and is preferably in contacttherewith. Fixed to the second bolt 14, adjacent the other end of the exhaust pipe is a bracket 17, whereto is pivoted one end of a lever 18, the lever being pivoted adjacent the bracket tothe expansion member as at 19. At 20 is an arm provided wit-h a clamp 21 which surrounds and is clamped to the stem 13, and this arm is provided with a series of openings 22 through one end of which passes a pivot pin 23 to which is connected alink 24:, the other end of the link being pivoted to one of a series of openings 25 inlever 18.

In operation the needle valve is adjusted While the engine is cold to" the maximum opening required to start the engine. The clamp 21 is then looked to. thestem 13. Vhen the engine is started the exhaust pipe 11 becomes heated thereby causing the expansion of the member 16. Now, since one end of this .member is fixed relative to the exhaust pipe the other end must move relative thereto. This causes the movement of the lever 18 and consequently acts to move the valve stem 13 in a direction which tends to close the needle-valve and thereby to out off the excess hydrocarbon, it being obviousthat less hydrocarbon is necessary dur ing the operation of the engine than-is necessary to start same. stopped the contraction of the member 16 acts upon the needle-valve and restores the same to starting position. Thus an economy of gasolene consumption is effected. There has thus been provided a simple and eliicient device of the kind described and for the purpose specified.

What is claimed as new is 1. The combination with a gas engine provided with an exhaust pipe and a valve for controlling the. supplyof hydrocarbon to the engine; of an expansion member ex- When the engine is tending along and in proximity to the exhaust pipe and having one end fixed in relation to the pipe and the other end mov able relative thereto, means for imparting opening and closing movement to the valve,

and an operative connection between the last named end of the member and said means.

2. The combination with a gas engine provided with an exhaust pipe and with a valve for controlling the supply of hydrocarbon to the engine, sa d valve having a stem; of an expansion member extending along and in proximity to the exhaust pipe and having one end fixed in relation thereto, a lever pivoted to the remaining end of said member and having a fixed fulcrum, an arm carrie-d by said stem,- means for locking the armin adjusted position on the stem, and a link connecting said lever and arm;

3. The combination with a gas engine provided with an exhaust and a carbureter needle-valve; of an expansion member adjacent and close to and above said exhaust, means for opening and closing the valve, and an operative connection between' the member and the means.

In testimony whereof, I aflix my-signature, in the presence of two witnesses.

JOHN MOSESMANESS.

Witnesses:

A. R. MCPHAIL, THos. L. COVINGTON. 

